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2014-10-30T15:33:18+02:00
( \sqrt{ \sqrt{2}+1 \sqrt{ \sqrt{2}-1 )²  + ( \sqrt{3+ \sqrt{5}  \sqrt{3- \sqrt{5} )² =( |  \sqrt{2} +1 | - |  \sqrt{2} -1| ) + ( | 3+√5 | + | 3-√5| )  = √2+1 - √2 -1 + 3 +√5 + √5 -3= 5